Renowned professor of psychology at Harvard and a prolific writer, Steven Pinker is the author of several prize-winning books, including The Language Instinct,How the Mind Works, The Blank Slate, and The Better Angels of Our Nature. This week Pinker releases a new book, Enlightenment Now: The Case for Reason, Science, Humanism, and Progress. I chatted over email with Professor Pinker and asked him some questions on his new book and contemporary politics.